Why would you do it?
- Do it on many machines without downloading Mavericks time and again.
- Do it on a machine that it not working proper in terms of its Mac OS X install.
- Do it on a machine where you want to flatten the old Mac OS X.
- Do it on a machine that refuses to install in the normal way so that you like to flatten.
How to prepare a USB install drive?A somewhat verbose story is given elsewhere:
If you know sudo, then it is trivial:
- Format the USB stick with Disc Utility; call it "Untitled" say.
- Just download Maverick (as if you wanted to install it).
- Run the following sudo command that prepares the USB drive in a few minutes.
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction
So basically, the installer has this great API to create an install drive!
How to install from the USB drive?
- Insert the USB drive into the computer.
- Boot and press "option" to see the list of boot devices.
- Select the USB drive.